Chemistry: Resources

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.

ChemSpider is a free chemical structure database providing fast text and structure search access to over 35 million structures from hundreds of data sources.

Access a variety of critically evaluated data on compounds, including spectral, chemical and physical properties

More than 1,600 Fact Sheets with information on health hazards, exposure limits, personal protective equipment, proper handling, first aid, and emergency procedures for fires and spills for known hazardous substances.

List basic chemical hazard data for thousands of chemicals.

Databases on toxicology, hazardous chemicals, environmental health, and toxic releases.